Model comparison
o3-pro vs Phi-4 Mini
o3-pro is the stronger model overall, scoring 42.7 to 30.4 on the Noometry Index. Phi-4 Mini costs 267× less per token, which makes it the better buy when o3-pro's lead doesn't matter for your workload.
Last verified . 1 shared benchmarks.
MicrosoftSummary
- They share 1 benchmark with published results for both. o3-pro scores higher in 3 categories and Phi-4 Mini in 0 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in coding, where o3-pro leads 55.1 to 27.6.
- Phi-4 Mini is cheaper at $0.075 / $0.30 per million input/output tokens, against $20 / $80 for o3-pro.
- o3-pro accepts more context: 200K tokens versus 128K.
- Phi-4 Mini has downloadable open weights; the other is API-only.
Side by side
| o3-pro | Phi-4 Mini | |
|---|---|---|
| Provider | OpenAI | Microsoft |
| Noometry Index | 42.7 | 30.4 |
| Released | 2025-06-10 | 2024-12-11 |
| Weights | Proprietary | Open |
| Context window | 200K | 128K |
| Max output | 100K | 4K |
| Input $ / M tokens | $20 | $0.075 |
| Output $ / M tokens | $80 | $0.30 |
| Results tracked | 12 | 3 |
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Category by category
Coding o3-pro leads
o3-pro: 55.1 (#22), Phi-4 Mini: 27.6 (#312)
| Benchmark | o3-pro | Phi-4 Mini |
|---|---|---|
| Aider Polyglot | 84.9% | — |
| SciCode | — | 10.8% |
| WeirdML | 58.2% | — |
Reasoning o3-pro leads
o3-pro: 24.1 (#152), Phi-4 Mini: 21.7 (#190)
| Benchmark | o3-pro | Phi-4 Mini |
|---|---|---|
| ARC-AGI-2 | 4.9% | — |
| Kagi LLM Benchmark | 72.1% | — |
| ARC-AGI-1 | 59.3% | — |
| CritPt | — | 0% |
| DTBench | 86.9% | — |
| LMCA | 38.5% | — |
| Epoch Capabilities Index | 147.43 | — |
Knowledge o3-pro leads
o3-pro: 29.0 (#234), Phi-4 Mini: 24.8 (#261)
| Benchmark | o3-pro | Phi-4 Mini |
|---|---|---|
| Vectara Hallucination Rate | 23.3% | 23.5% |
| Confabulations | 14.2% | — |
Long Context Not comparable
o3-pro: 72.1 (#1), Phi-4 Mini: —
| Benchmark | o3-pro | Phi-4 Mini |
|---|---|---|
| Fiction.LiveBench | 97.2% | — |
Writing & Preference Not comparable
o3-pro: 57.1 (#128), Phi-4 Mini: —
| Benchmark | o3-pro | Phi-4 Mini |
|---|---|---|
| Short-Story Creative Writing | 84.4% | — |
Frequently asked questions
Is o3-pro better than Phi-4 Mini?
o3-pro is the stronger model overall, scoring 42.7 to 30.4 on the Noometry Index. Phi-4 Mini costs 267× less per token, which makes it the better buy when o3-pro's lead doesn't matter for your workload.
Which is cheaper, o3-pro or Phi-4 Mini?
Phi-4 Mini is cheaper. It lists at $0.075 per million input tokens and $0.30 per million output tokens; o3-pro lists at $20 and $80.
Is o3-pro or Phi-4 Mini better for coding?
o3-pro scores higher on coding benchmarks: 55.1 versus 27.6 in the Noometry coding category.
Which has the bigger context window?
o3-pro does, with 200K tokens against 128K.
How many benchmarks do o3-pro and Phi-4 Mini share?
1 benchmark has published results for both models. o3-pro has 12 scored results on Noometry and Phi-4 Mini has 3.